fish locators humminbird humminbird humminbird speed helex piranhamax 4" modern styling and a larger 4.3" color lcd give you a fresh perspective on what's below your boat with this finder or a wide beam for great detail or generous coverage area plus a tilt and swivel mount helix 5 chirp gps g2 power output rms 500w and chirp dualbeam plus gps chart plotting and built-in unimap cartography degrees at -10db helix 7 chirp mdi gps g3 7" ultra-wide display gives ample room to view the humminbird humminbird humminbird humminbird new helix 8 chirp ds gps g4n features an 8" display with dual spectrum chirp sonar for compatibility with the one-boat network family of new helix 9 chirp gps g4n features a 9" display with dual spectrum chirp and ethernet networking for compatibility with the one-boat network™ family of products from john's pick new helix 10™ chirp gps g4n for compatibility with the one-boat network' family of